"I have no idea where that came from," Black said. "That was uncalled for, I thought. I didn't get it."

And if Bumgarner opted to throw behind Guzman because the Giants didn't like how he celebrated after his home run?

"If it was … Bumgarner shouldn't have done it," Black said. "Guzman was showing emotion like so many other players in our game do. He was emotional. It was a key part of the game in a key series."

Bumgarner declined to comment on the pitch to Guzman and the ensuing bench-clearing incident.

"There's no need to comment on that. No need to," he said.

Guzman took a couple steps toward the mound and also pointed the bat toward Bumgarner while also yelling in his direction. San Francisco catcher Buster Posey intervened, standing between Guzman and Bumgarner.

"We were just trying to get inside to a guy that's hurt us over the plate before," Posey said.

The benches cleared but the two teams dispersed quickly with no ejections issued. Play resumed in fewer than five minutes.